Question

Which set of ordered pairs represents a function?

{
(
−
5
,
−
4
)
,
(
−
4
,
−
7
)
,
(
−
4
,
−
4
)
,
(
2
,
3
)
}
{(−5,−4),(−4,−7),(−4,−4),(2,3)}

{
(
−
1
,
6
)
,
(
8
,
−
5
)
,
(
−
3
,
−
5
)
,
(
3
,
−
6
)
}
{(−1,6),(8,−5),(−3,−5),(3,−6)}

{
(
8
,
0
)
,
(
−
6
,
8
)
,
(
−
8
,
4
)
,
(
−
6
,
7
)
}
{(8,0),(−6,8),(−8,4),(−6,7)}

{
(
4
,
5
)
,
(
−
6
,
4
)
,
(
7
,
−
6
)
,
(
4
,
2
)
}
{(4,5

Answer 1

(2,3) is thw only function

Explanation:

The same number can not be repeated